回调参数是const char*，回调老是异常，怎么办？

[littlefellow]

我在一个C++ dll中定义了一个回调机制，如下

typedef void (*InfoReceiverCallBack)(const char* pInfo);

InfoReceiverCallBack lpInfoCallback = NULL;

HRESULT RegisterInfoReceiveCallBack(InfoReceiverCallBack callBack)
{
lpInfoCallback = callBack;
return S_OK;
}

//其他函数调用
void TraceInfo(const char* c)
{
TRACE(c);
if(lpInfoCallback != NULL)
{
lpInfoCallBack(c);
}
}

在C#中定义如下:

public delegate void InfoReceiveDelegate(
string info);
[DllImport("XXX.dll", CallingConvention = CallingConvention .Cdecl)]
public static extern int RegisterInfoReceiveCallBack(
InfoReceiveDelegate infoReceiver);

然后有一个显示函数:
void Output(string info)
{
//XXXXXXXXX
}

每次设置断点后信息正常，但是跳出函数时出现如下错误：
Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call, This is usually a result of calling a function declared with one calling conversion with a function pointer declared with a different calling convertion.

我的C++类库是用_Cdecl调用约定，改为_Stdcall编译不过去，因为有一个第三方的lib.
我写了一个C++测试程序，是没有问题的。
到底是什么问题??
请指教，多谢多谢

[littlefellow]

急急如率令

[littlefellow]

一语惊醒我梦中人那，谢谢

[JasonHeung]

typedef void ( WINAPI *InfoReceiverCallBack)(const char* pInfo);